Publications by authors named "David O Jegede"
The accumulation pattern of some inorganic pollutants in quarry sites around Ogun State was modeled using a Fuzzy comprehensive assessment (FCA). Potentially toxic elements (PTEs) and naturally occurring radionuclides materials (NORMs) were assessed from soil samples collected from ten quarry sites in three districts (Odeda, Ajebo, and Ijebu Ode) in Ogun State. Three (3) NORMs ( K, U, Th) were assessed using gamma spectrometer with a NaI detector while ten (10) PTEs (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) were determined by digestion method using Inductively coupled plasma optical emission spectrophotometer.
View Article and Find Full Text PDFOccurrence, source apportionment, and ecological risk assessment of organophosphate esters in surface sediment from the Ogun and Osun Rivers, Southwest Nigeria.
Muideen Remilekun Gbadamosi Adeyemi Lawrence Ogunneye David Olaoluwa Jegede Mohamed Abou-Elwafa Abdallah Stuart Harrad
Environ Sci Pollut Res Int
December 2023
Article Synopsis
- Organophosphate esters (OPEs) are synthetic chemicals used in products like flame retardants and plasticizers and pose toxicity risks to aquatic life.
- A study in two major rivers in southwest Nigeria examined the concentrations and ecological risks of eight OPEs, finding significant levels of TBOEP and varying profiles of other OPEs in the sediments.
- The research indicated moderate to high ecological risks from specific OPEs, particularly TCIPP and TDCIPP, highlighting the need for more investigation into the effects of these chemicals on freshwater ecosystems.